Robust adaptive control for MDF hot press hydraulic system based on fuzzy disturbance observer

In this paper, a robust adaptive tracking control problem is investigated for medium density fibreboard (MDF) hot press hydraulic system in the presence of interior parameter perturbations and external load disturbance. Firstly, a novel fuzzy disturbance observer is designed to estimate the interior parameter perturbations and external load disturbance of the system, and the output of the fuzzy disturbance observer is fed back into the control input to compensate system model. Subsequently, a continuous controller is designed that ensures that the finite-time convergence of the state of the third subsystem. Numerical simulation results are also exhibited to authenticate and validate the benefits of the proposed control scheme.